AMD Analog/Digital Layout Designer interview questions

The interview started with a written test for a half-hour followed by a few in person technical questions. The overall atmosphere was very uninviting. It seemed to me that they really didn't want to be there and that I wasting their time. I was intimidating especially since this was my very first interview. All in all the questions were fair but the interviewers were far from friendly and didn't seem like people I'd enjoy working with.